Stuffing-box for water-meters.



E. E. GAMON.

STUFFING BOX FOR WATER METERS.

APPLIOATION FILED JUNE 28, 1909.

V 954,621 Patented Apr; 12,1910.

- WITNESSES: [AWE-NT R W m4 I Arm/mam ANDREW i1 GRAHAM 00,,PNOTO-LITHQGRAFNERS. WAsmNa'roN. n. c

* FFI C E,

ERNEST E. GAD/ION, OF NEWARK, NEVT JERSEY.

STUFFING-BOX FOR WATER-METERS.

To all whom it may concern:

Be it known that I, ERNEST E. GAMoN, a citizen of the United States,residing in the city of Newark, county of Essex, and State of NewJersey, have invented certain new and useful Improvements inStufling-Boxes for YVater-lvleters, of which the following is a full,clear, and exact description, such as will enable others skilled in theart to which it pertains to make, construct, and use the same.

My invention relates to fluid meters, and it has for its object, toprovide an improved construction to reduce the frictional resistance andleakage of the stuffing box, and whereby the several parts of suchmechanism may be maintained in proper cooperative relation. With theseends in view, I have devised the means shown in the accompanyingdrawings, in which Figure 1 illustrates an external view of a watermeter, partly in section, disclosing my improvements. Fig. 2 is anillustration of the device in vertical center-section.

Similar letters of reference refer to like parts throughout thespecification and drawings.

The inclosing case of the meter is composed of the two shell-likecastings a and b,

fastened together in any suitable manner. The upper casting a has theregister in closing compartment (Z, secured thereto and is provided withthe usual cover 6. The registering mechanism and gear train may be ofthe usual type in common use in water meters, hence they are not hereshown.

The casing a of the meter is of a construction adapted to the containedparts of any desired character, and 7" indicates one of a train ofreducing gear or other part which derives motion from the operations ofthe meter. To this part 7' is detachably con nected by any suitablecoupling, the spindle g. As shown, said spindle g is secured in anyconvenient manner to the coupling h, and suitable gears 2' and j connectthe spindle 7 with the register train. The spindle 9 passes through astuffing box 70. This stuffing box is composed of the tubular post Z,cast integral with the compartment (Z and extending above and below thepartition m of said compartment, the clamping nut 12, and recesses 0 and0 formed in the upper and lower portions of the tubular post Z, plasticpacking material 0 such as leather or cork or similar material in therecesses 0,

Specification of Letters Patent.

Application filed June 28, 1909.

Patented Apr. 12, 1910.

Serial No. 504,841.

graphite or similar material 0 in the recess 0, hard rubber bushing 29having one end contacting with the graphite packin and the other endcontacting with the insi e of the coupling la, the spindle 9 beingsecured to the coupling hand passing centrally through the hard rubberbushing p. The upper end of the spindle is secured to the gear wheel aby means of a set screw 2". The clamping nut n has screw-threadedengagement with the upper end of the tubular post Z of the stuiiing box.The lower end of the tubular post Z of the stuffing box which projectsbelow the partition m of the casing (Z is preferably slightly tapered toreceive the tapered tubular bearing h of the coupling it.

Sometimes I find it convenient to make the upper end of the hard rubberbushing 39 as shown in Fig. 2 of the drawings, beveled to conform to thebevel of the recess 0 formed in the lower end of the tubular post Z,causing the end to press against the graphite packing located in thesaid recess, although I get equally good results with the bushing shownin Fig. 1, which is not beveled to conform to the bevel of the recess.

With the structures shown, it will be seen that the spindle is guidedaxially by the packings, hard rubber bushing and the tubular post;furthermore, that the water pressure exerted upon the coupling serves tocrowd the hard rubber bushing against the graphite packing, andsimultaneously, causes the tubular tapered bearing h to slide upon thetubular post Z of the stuffing box, thereby reducing the leakage of thestufling box to a minimum and producing a nonleaking stufling box.

I claim:

1. The combination with the casing of the register chamber of a meterproviding a partition for separating the meter chamber and the registerchamber, and provided with a stufling box consisting of an upper postand a lower integral tapered post extending into said chambersrespectively from said partition, of one of the driven parts of themeter provided with a tapered bearing arranged to surround the lowertapered post, a spindle passing through the said posts and connectedwith said driven part and packing parts located in the upper and lowerposts and surrounding the spindle.

2. The combination with the casing of the register chamber of a meterproviding a partition for separating the meter chamber and the registerchamber, and provided with a stuffing box consisting of an upperscrewthreaded post and a lower conical post extending into said chambersrespectively from said partition, of one of the driven parts of themeter provided with a tapered bearing arranged to surround the lowerconical post, a register train, a spindle passing through the said postsand connected at its lower end with said driven part and at its upperend geared with the register train and packing parts located in theupper and lower posts and surrounding the spindle.

3. The combination with the casing of the register chamber of a meterproviding a partition for separating the meter chamber and the registerchamber, and provided with a stutiing box consisting of an upperscrewthreaded post and a lower conical recessed post extending into saidchambers respectively from said partition, of one of the driven parts ofthe meter in engagement with the lower conical post, a register train, aspindle passing through the said posts and connected at its lower endwith said meter provided with a tapered bearing and 1 in engagement withthe lower post, a spindle passing through the said posts and connectedwith the driven part and packing located in the lower post surroundingthe spindle and in engagement with the said driven part of the meter,whereby the internal pressure of the contents of the meter exertedagainst said driven part causes the packing to be forced into the postand around the spindle.

The combination with the casing of the register chamber of a meterproviding a partition for separating the meter-chamber and the registerchamber, and provided with a stufiing box consisting of an upperscrewthreaded post and a lower conical recessed post extending into saidchambers respectively from said partition, of one of the driven parts ofthe meter in engagement 'ith the lower conical post, a register train, aspindle passing through the said posts and connected at its lower endwith said driven part and at its upper end geared with the registertrain and packing parts located in the said recesses of the upper andlower posts and surrounding the spindle, the packing in the lower postcontacting with said driven part, whereby the internal pressure of thecontents of the meter exerted against said driven part causes thepacking to be forced into the recess and around the spindle.

This specification signed and witnessed this 25th day of June, 1909.

ERNEST E. GAMON. lVitnesses C. A. ALLIs'rON, L. M. SANDERS.

